CourseUtilities.java

1 
package edu.ucsb.cs156.courses.utilities;
2
3 
/** static utility methods for dealing with courses */
4 
public class CourseUtilities {
5
6 
  // Utility class; this allows jacoco to be satisified that constructors are
7 
  // covered.
8 
  private CourseUtilities() {}
9
10 
  /**
11 
   * Given a subject area and course number, return a course id that is formatted similarly to the
12 
   * precise way that course numbers are formatted in UCSB's GOLD system.
13 
   *
14 
   * <p>That format has the subject area left justified in an 8 character field, followed by the
15 
   * course number right justified in a 3 character field, followed by the suffix (if any) left
16 
   * justified in a 2 character field.
17 
   *
18 
   * <p>However, we use this function to query rtora's CSV files with grade data, at
19 
   * https://github.com/rtora/UCSB_Grades/ in which this course id is trimmed, such that there are
20 
   * never ending spaces.
21 
   *
22 
   * <p>Therefore, we intentionally also trim the result course id in this function to properly
23 
   * query the CSV files. For example, CMPSC 130A would typically be written:
24 
   *
25 
   * <p>"CMPSC 130A "
26 
   *
27 
   * <p>but we return "CMPSC 130A" to query the CSV file.
28 
   *
29 
   * @param subjectArea subject area, such as CMPSC
30 
   * @param courseNumber course number, such as 130A
31 
   * @return formatted course number
32 
   */
33 
  public static String makeFormattedCourseId(String subjectArea, String courseNumber) {
34 
    String[] nums = courseNumber.split("[a-zA-Z]+");
35 
    String[] suffs = courseNumber.split("[0-9]+");
36 
    String result = "";
37 2 1. makeFormattedCourseId : negated conditional → KILLED
2. makeFormattedCourseId : changed conditional boundary → KILLED
 
    if (suffs.length < 2) { // no suffix
38 
      result =
39 
          String.format("%-8s", subjectArea) // 'CMPSC '
40 
              + String.format("%3s", nums[0]) // ' 8'
41 
      ;
42 
    } else {
43 
      result =
44 
          String.format("%-8s", subjectArea) // 'CMPSC '
45 
              + String.format("%3s", nums[0]) // ' 8'
46 
              + String.format("%-2s", suffs[1]) // 'A '
47 
      ;
48 
    }
49 1 1. makeFormattedCourseId : replaced return value with "" for edu/ucsb/cs156/courses/utilities/CourseUtilities::makeFormattedCourseId → KILLED
 
    return result.trim();
50 
  }
51
52 
  /**
53 
   * Convert a quarter string (e.g., "Winter", "Spring") to its corresponding digit.
54 
   *
55 
   * @param quarter the quarter string (e.g., "Winter", "Spring")
56 
   * @return the digit representing the quarter (1-4), or 0 if invalid
57 
   */
58 
  public static String quarterToDigit(String quarter) {
59 1 1. quarterToDigit : replaced return value with "" for edu/ucsb/cs156/courses/utilities/CourseUtilities::quarterToDigit → KILLED
 
    return switch (quarter) {
60 
      case "Winter" -> "1";
61 
      case "Spring" -> "2";
62 
      case "Summer" -> "3";
63 
      case "Fall" -> "4";
64 
      default -> "0";
65 
    };
66 
  }
67 
}

Mutations

37

1.1
Location : makeFormattedCourseId
Killed by : edu.ucsb.cs156.courses.utilities.CourseUtilitiesTests.[engine:junit-jupiter]/[class:edu.ucsb.cs156.courses.utilities.CourseUtilitiesTests]/[method:test_makeFormattedCourseId_CMPSC_5A()] negated conditional → KILLED

2.2
Location : makeFormattedCourseId
Killed by : edu.ucsb.cs156.courses.utilities.CourseUtilitiesTests.[engine:junit-jupiter]/[class:edu.ucsb.cs156.courses.utilities.CourseUtilitiesTests]/[method:test_makeFormattedCourseId_CMPSC_5A()] changed conditional boundary → KILLED

49

1.1
Location : makeFormattedCourseId
Killed by : edu.ucsb.cs156.courses.utilities.CourseUtilitiesTests.[engine:junit-jupiter]/[class:edu.ucsb.cs156.courses.utilities.CourseUtilitiesTests]/[method:test_makeFormattedCourseId_CMPSC_5A()] replaced return value with "" for edu/ucsb/cs156/courses/utilities/CourseUtilities::makeFormattedCourseId → KILLED

59

1.1
Location : quarterToDigit
Killed by : edu.ucsb.cs156.courses.utilities.CourseUtilitiesTests.[engine:junit-jupiter]/[class:edu.ucsb.cs156.courses.utilities.CourseUtilitiesTests]/[method:test_quarterToDigit()] replaced return value with "" for edu/ucsb/cs156/courses/utilities/CourseUtilities::quarterToDigit → KILLED

Active mutators

Tests examined


Report generated by PIT 1.17.0